Apparatus, systems and methods for layout of scene graphs using node bounding areas

A computing system, comprising:

• at least one tangible machine-readable media operable to store a plurality of nodes in a scene graph;
• at least one processing unit, coupled to the at least one tangible machine-readable media, operable to generate a display;
• and
• a display device, coupled to the at least one processing unit, operable to present the display generated by the at least one processing unit;
• wherein the at least one processing unit is configured to:
• assign a value to a layout bound of a first node in the plurality of nodes, the first node comprising at least an area of an object corresponding to the first node and at least one set of transforms wherein rendering the first node comprises applying the at least one set of transforms to the area of the object, the layout bound being a bounding volume for the object;
• calculate a display layout for at least a second not in the plurality of nodes relative to the first node based on the value of the layout bound;
• and
• render at least the first node and the second node to generate the display according to the calculated display layout.

A computer program product, including a computer readable storage medium and instructions, executable by a processing unit, tangibly embodied in the computer readable storage medium, the instructions comprising:

• a first set of instructions operable to assign a value to a layout bound of a first node in a plurality of nodes in a scene graph stored in a tangible machine-readable media, utilizing at least one processing unit, the value comprising display properties of an object of the first node and a first set of display modifiers of the first node but not a second set of display modifiers of the first node, wherein rendering the first node comprises applying the first set of display modifiers and the second set of display modifiers to the display properties of the object;
• a second set of instructions operable to calculate a display layout for at least a second node in the plurality of nodes, utilizing the at least one processing unit, relative to the first node based on the value of the layout bound;
• and
• a third set of instructions operable to render at least the first node and the second node to generate a display on a display device, utilizing the at least one processing unit, according to the calculated display layout.